CAMAG ADC 2 - Humidity Control Installation

ADC 2
Instruction Manual, November 2016 Page 34
Relative humidity above saturated salt solutions:
Salt
relative humidity [%]
at a temperature of ...°C
Solubility at 20°C
2)
[g / 100 g H
2
O]
10
15
20
25
30
35
40
Magnesium chloride
33
33
33
33
33
33
33
54,4
Potassium thiocyanate
1)
47
222,5
Sodium chloride
76
75
75
75
75
75
75
36,0
Table 1: If not stated differently the values are from: CRC Handbook of Chemistry and
Physics 1995 by CRC Press.
1) Values from Römpp Lexicon Chemistry (9. Edition).
2) The solubility values are from: Küster, Friedrich W.: Rechentafeln für die chemische
Analytik. Berlin, New York: de Gruyter, 103. bearb. Aufl., 1985.
Remarks:
It should be added that heating air of 75% relative humidity from
20 to 21°C reduces the relative humidity by 5% down to 70%. A
constant temperature is thus necessary for reaching optimal hu-
midity constancy. The salt solution should in any case have the
same temperature as the ADC2, which, especially with recently
manufactured salt solutions is generally not immediately the case.
2. Installation
Fig.13: Ventilation valve module: 1= fixation screws.
1